プル サブスクリプションを同期する方法 (RMO プログラミング)
レプリケーション管理オブジェクト (RMO) およびマネージ コードを使用してレプリケーション エージェント機能にアクセスすることで、プル サブスクリプションをプログラムから同期できます。プル サブスクリプションを同期する際に使用するクラスは、サブスクリプションが属しているパブリケーションの種類によって異なります。
注意 |
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アプリケーションに影響を及ぼすことなく、自立的に実行される同期を開始するには、エージェントを非同期的に起動します。ただし、同期処理中に同期の結果を監視し、エージェントからのコールバックを受け取る場合 (たとえば、進行状況バーを表示する場合)、エージェントを同期的に起動する必要があります。MicrosoftSQL Server 2005 Express Edition サブスクライバの場合、エージェントを同期的に起動する必要があります。 |
スナップショット パブリケーションまたはトランザクション パブリケーションに対するプル サブスクリプションを同期するには
ServerConnection クラスを使用して、サブスクライバへの接続を作成します。
TransPullSubscription クラスのインスタンスを作成し、次のプロパティを設定します。
DatabaseName に、サブスクリプション データベースの名前を設定します。
PublicationName に、サブスクリプションが属しているパブリケーションの名前を設定します。
PublicationDBName にパブリケーション データベース名を指定します。
PublisherName に、パブリッシャの名前を設定します。
ConnectionContext に、手順 1. で作成した接続を設定します。
LoadProperties メソッドを呼び出して、その他のサブスクリプション プロパティを取得します。このメソッドが false を返す場合、サブスクリプションが存在するかどうかを確認してください。
次のいずれかの方法で、サブスクライバのディストリビューション エージェントを起動します。
手順 2. で作成した TransPullSubscription インスタンスの SynchronizeWithJob メソッドを呼び出します。このメソッドは、ディストリビューション エージェントを非同期的に起動するため、エージェント ジョブの実行中、制御が直ちにアプリケーションに返されます。SQL Server 2005 Express Edition サブスクライバの場合、または、CreateSyncAgentByDefault の値に false (既定値) を指定して作成されたサブスクリプションの場合、このメソッドを呼び出すことはできません。
SynchronizationAgent プロパティから TransSynchronizationAgent クラスのインスタンスを取得し、Synchronize メソッドを呼び出します。このメソッドにより、エージェントが同期的に起動され、制御は実行中のエージェント ジョブに残ります。同期実行の間、エージェントの実行中に Status イベントを処理できます。
注意 プル サブスクリプションの作成時、CreateSyncAgentByDefault の値に false (既定値) を指定した場合、サブスクリプションのエージェント ジョブに関連したメタデータを MSsubscription_properties から取得することができないため、Distributor および DistributorSecurityMode を指定し、さらに、必要に応じて DistributorLogin と DistributorPassword も指定する必要があります。
マージ パブリケーションに対するプル サブスクリプションを同期するには
ServerConnection クラスを使用して、サブスクライバへの接続を作成します。
MergePullSubscription クラスのインスタンスを作成し、次のプロパティを設定します。
DatabaseName に、サブスクリプション データベースの名前を設定します。
PublicationName に、サブスクリプションが属しているパブリケーションの名前を設定します。
パブリッシュするデータベースの名前を PublicationDBName に指定します。
PublisherName に、パブリッシャの名前を設定します。
ConnectionContext に、手順 1. で作成した接続を設定します。
LoadProperties メソッドを呼び出して、その他のサブスクリプション プロパティを取得します。このメソッドが false を返す場合、サブスクリプションが存在するかどうかを確認してください。
次のいずれかの方法で、サブスクライバのマージ エージェントを起動します。
手順 2. で作成した MergePullSubscription インスタンスの SynchronizeWithJob メソッドを呼び出します。このメソッドは、マージ エージェントを非同期的に起動するため、エージェント ジョブの実行中、制御が直ちにアプリケーションに返されます。SQL Server 2005 Express Edition サブスクライバの場合、または、CreateSyncAgentByDefault の値に false (既定値) を指定して作成されたサブスクリプションの場合、このメソッドを呼び出すことはできません。
SynchronizationAgent プロパティから MergeSynchronizationAgent クラスのインスタンスを取得し、Synchronize メソッドを呼び出します。このメソッドにより、マージ エージェントが同期的に起動され、制御は実行中のエージェント ジョブに残ります。同期実行の間、エージェントの実行中に Status イベントを処理できます。
注意 プル サブスクリプションの作成時、CreateSyncAgentByDefault の値に false (既定値) を指定した場合、サブスクリプションのエージェント ジョブに関連したメタデータを MSsubscription_properties から取得することができないため、Distributor、DistributorSecurityMode、PublisherSecurityMode、HostName、SubscriptionType、ExchangeType を指定し、さらに、必要に応じて DistributorLogin、DistributorPassword、PublisherLogin、PublisherPassword も指定する必要があります。
使用例
次の例では、トランザクション パブリケーションへのプル サブスクリプションを同期します。エージェントはエージェント ジョブを使用して非同期的に起動されます。
// Define server, publication, and database names.
String subscriberName = subscriberInstance;
String publisherName = publisherInstance;
String publicationName = "AdvWorksProductTran";
String publicationDbName = "AdventureWorks";
String subscriptionDbName = "AdventureWorksReplica";
// Create a connection to the Subscriber.
ServerConnection conn = new ServerConnection(subscriberName);
TransPullSubscription subscription;
try
{
// Connect to the Subscriber.
conn.Connect();
// Define subscription properties.
subscription = new TransPullSubscription();
subscription.ConnectionContext = conn;
subscription.DatabaseName = subscriptionDbName;
subscription.PublisherName = publisherName;
subscription.PublicationDBName = publicationDbName;
subscription.PublicationName = publicationName;
// If the pull subscription and the job exists, start the agent job.
if (subscription.LoadProperties() && subscription.AgentJobId != null)
{
subscription.SynchronizeWithJob();
}
else
{
// Do something here if the subscription does not exist.
throw new ApplicationException(String.Format(
"A subscription to '{0}' does not exists on {1}",
publicationName, subscriberName));
}
}
catch (Exception ex)
{
// Do appropriate error handling here.
throw new ApplicationException("The subscription could not be synchronized.", ex);
}
finally
{
conn.Disconnect();
}
' Define server, publication, and database names.
Dim subscriberName As String = subscriberInstance
Dim publisherName As String = publisherInstance
Dim publicationName As String = "AdvWorksProductTran"
Dim publicationDbName As String = "AdventureWorks"
Dim subscriptionDbName As String = "AdventureWorksReplica"
' Create a connection to the Subscriber.
Dim conn As ServerConnection = New ServerConnection(subscriberName)
Dim subscription As TransPullSubscription
Try
' Connect to the Subscriber.
conn.Connect()
' Define subscription properties.
subscription = New TransPullSubscription()
subscription.ConnectionContext = conn
subscription.DatabaseName = subscriptionDbName
subscription.PublisherName = publisherName
subscription.PublicationDBName = publicationDbName
subscription.PublicationName = publicationName
' If the pull subscription and the job exists, start the agent job.
If subscription.LoadProperties() And Not subscription.AgentJobId Is Nothing Then
subscription.SynchronizeWithJob()
Else
' Do something here if the subscription does not exist.
Throw New ApplicationException(String.Format( _
"A subscription to '{0}' does not exists on {1}", _
publicationName, subscriberName))
End If
Catch ex As Exception
' Do appropriate error handling here.
Throw New ApplicationException("The subscription could not be synchronized.", ex)
Finally
conn.Disconnect()
End Try
次の例では、トランザクション パブリケーションへのプル サブスクリプションを同期します。エージェントは同期的に起動されます。
// Define the server, publication, and database names.
string subscriberName = subscriberInstance;
string publisherName = publisherInstance;
string publicationName = "AdvWorksProductTran";
string subscriptionDbName = "AdventureWorksReplica";
string publicationDbName = "AdventureWorks";
// Create a connection to the Subscriber.
ServerConnection conn = new ServerConnection(subscriberName);
TransPullSubscription subscription;
try
{
// Connect to the Subscriber.
conn.Connect();
// Define the pull subscription.
subscription = new TransPullSubscription();
subscription.ConnectionContext = conn;
subscription.DatabaseName = subscriptionDbName;
subscription.PublisherName = publisherName;
subscription.PublicationDBName = publicationDbName;
subscription.PublicationName = publicationName;
// If the pull subscription exists, then start the synchronization.
if (subscription.LoadProperties())
{
// Check that we have enough metadata to start the agent.
if (subscription.PublisherSecurity != null)
{
// Synchronously start the Distribution Agent for the subscription.
subscription.SynchronizationAgent.Synchronize();
}
else
{
throw new ApplicationException("There is insufficent metadata to " +
"synchronize the subscription. Recreate the subscription with " +
"the agent job or supply the required agent properties at run time.");
}
}
else
{
// Do something here if the pull subscription does not exist.
throw new ApplicationException(String.Format(
"A subscription to '{0}' does not exist on {1}",
publicationName, subscriberName));
}
}
catch (Exception ex)
{
// Implement appropriate error handling here.
throw new ApplicationException("The subscription could not be " +
"synchronized. Verify that the subscription has " +
"been defined correctly.", ex);
}
finally
{
conn.Disconnect();
}
' Define the server, publication, and database names.
Dim subscriberName As String = subscriberInstance
Dim publisherName As String = publisherInstance
Dim publicationName As String = "AdvWorksProductTran"
Dim subscriptionDbName As String = "AdventureWorksReplica"
Dim publicationDbName As String = "AdventureWorks"
' Create a connection to the Subscriber.
Dim conn As ServerConnection = New ServerConnection(subscriberName)
Dim subscription As TransPullSubscription
Try
' Connect to the Subscriber.
conn.Connect()
' Define the pull subscription.
subscription = New TransPullSubscription()
subscription.ConnectionContext = conn
subscription.DatabaseName = subscriptionDbName
subscription.PublisherName = publisherName
subscription.PublicationDBName = publicationDbName
subscription.PublicationName = publicationName
' If the pull subscription exists, then start the synchronization.
If subscription.LoadProperties() Then
' Check that we have enough metadata to start the agent.
If Not subscription.PublisherSecurity Is Nothing Then
' Write agent output to a log file.
subscription.SynchronizationAgent.Output = "distagent.log"
subscription.SynchronizationAgent.OutputVerboseLevel = 2
' Synchronously start the Distribution Agent for the subscription.
subscription.SynchronizationAgent.Synchronize()
Else
Throw New ApplicationException("There is insufficent metadata to " + _
"synchronize the subscription. Recreate the subscription with " + _
"the agent job or supply the required agent properties at run time.")
End If
Else
' Do something here if the pull subscription does not exist.
Throw New ApplicationException(String.Format( _
"A subscription to '{0}' does not exist on {1}", _
publicationName, subscriberName))
End If
Catch ex As Exception
' Implement appropriate error handling here.
Throw New ApplicationException("The subscription could not be " + _
"synchronized. Verify that the subscription has " + _
"been defined correctly.", ex)
Finally
conn.Disconnect()
End Try
次の例では、マージ パブリケーションへのプル サブスクリプションを同期します。エージェントはエージェント ジョブを使用して非同期的に起動されます。
// Define server, publication, and database names.
String subscriberName = subscriberInstance;
String publisherName = publisherInstance;
String publicationName = "AdvWorksSalesOrdersMerge";
String publicationDbName = "AdventureWorks";
String subscriptionDbName = "AdventureWorksReplica";
// Create a connection to the Subscriber.
ServerConnection conn = new ServerConnection(subscriberName);
MergePullSubscription subscription;
try
{
// Connect to the Subscriber.
conn.Connect();
// Define subscription properties.
subscription = new MergePullSubscription();
subscription.ConnectionContext = conn;
subscription.DatabaseName = subscriptionDbName;
subscription.PublisherName = publisherName;
subscription.PublicationDBName = publicationDbName;
subscription.PublicationName = publicationName;
// If the pull subscription and the job exists, start the agent job.
if (subscription.LoadProperties() && subscription.AgentJobId != null)
{
subscription.SynchronizeWithJob();
}
else
{
// Do something here if the subscription does not exist.
throw new ApplicationException(String.Format(
"A subscription to '{0}' does not exists on {1}",
publicationName, subscriberName));
}
}
catch (Exception ex)
{
// Do appropriate error handling here.
throw new ApplicationException("The subscription could not be synchronized.", ex);
}
finally
{
conn.Disconnect();
}
' Define server, publication, and database names.
Dim subscriberName As String = subscriberInstance
Dim publisherName As String = publisherInstance
Dim publicationName As String = "AdvWorksSalesOrdersMerge"
Dim publicationDbName As String = "AdventureWorks"
Dim subscriptionDbName As String = "AdventureWorksReplica"
' Create a connection to the Subscriber.
Dim conn As ServerConnection = New ServerConnection(subscriberName)
Dim subscription As MergePullSubscription
Try
' Connect to the Subscriber.
conn.Connect()
' Define subscription properties.
subscription = New MergePullSubscription()
subscription.ConnectionContext = conn
subscription.DatabaseName = subscriptionDbName
subscription.PublisherName = publisherName
subscription.PublicationDBName = publicationDbName
subscription.PublicationName = publicationName
' If the pull subscription and the job exists, start the agent job.
If subscription.LoadProperties() And Not subscription.AgentJobId Is Nothing Then
subscription.SynchronizeWithJob()
Else
' Do something here if the subscription does not exist.
Throw New ApplicationException(String.Format( _
"A subscription to '{0}' does not exists on {1}", _
publicationName, subscriberName))
End If
Catch ex As Exception
' Do appropriate error handling here.
Throw New ApplicationException("The subscription could not be synchronized.", ex)
Finally
conn.Disconnect()
End Try
次の例では、マージ パブリケーションへのプル サブスクリプションを同期します。エージェントは同期的に起動されます。
// Define the server, publication, and database names.
string subscriberName = subscriberInstance;
string publisherName = publisherInstance;
string publicationName = "AdvWorksSalesOrdersMerge";
string subscriptionDbName = "AdventureWorksReplica";
string publicationDbName = "AdventureWorks";
// Create a connection to the Subscriber.
ServerConnection conn = new ServerConnection(subscriberName);
MergePullSubscription subscription;
try
{
// Connect to the Subscriber.
conn.Connect();
// Define the pull subscription.
subscription = new MergePullSubscription();
subscription.ConnectionContext = conn;
subscription.DatabaseName = subscriptionDbName;
subscription.PublisherName = publisherName;
subscription.PublicationDBName = publicationDbName;
subscription.PublicationName = publicationName;
// If the pull subscription exists, then start the synchronization.
if (subscription.LoadProperties())
{
// Check that we have enough metadata to start the agent.
if (subscription.PublisherSecurity != null || subscription.DistributorSecurity != null)
{
// Synchronously start the Merge Agent for the subscription.
subscription.SynchronizationAgent.Synchronize();
}
else
{
throw new ApplicationException("There is insufficent metadata to " +
"synchronize the subscription. Recreate the subscription with " +
"the agent job or supply the required agent properties at run time.");
}
}
else
{
// Do something here if the pull subscription does not exist.
throw new ApplicationException(String.Format(
"A subscription to '{0}' does not exist on {1}",
publicationName, subscriberName));
}
}
catch (Exception ex)
{
// Implement appropriate error handling here.
throw new ApplicationException("The subscription could not be " +
"synchronized. Verify that the subscription has " +
"been defined correctly.", ex);
}
finally
{
conn.Disconnect();
}
' Define the server, publication, and database names.
Dim subscriberName As String = subscriberInstance
Dim publisherName As String = publisherInstance
Dim publicationName As String = "AdvWorksSalesOrdersMerge"
Dim subscriptionDbName As String = "AdventureWorksReplica"
Dim publicationDbName As String = "AdventureWorks"
' Create a connection to the Subscriber.
Dim conn As ServerConnection = New ServerConnection(subscriberName)
Dim subscription As MergePullSubscription
Try
' Connect to the Subscriber.
conn.Connect()
' Define the pull subscription.
subscription = New MergePullSubscription()
subscription.ConnectionContext = conn
subscription.DatabaseName = subscriptionDbName
subscription.PublisherName = publisherName
subscription.PublicationDBName = publicationDbName
subscription.PublicationName = publicationName
' If the pull subscription exists, then start the synchronization.
If subscription.LoadProperties() Then
' Check that we have enough metadata to start the agent.
If Not subscription.PublisherSecurity Is Nothing Or subscription.DistributorSecurity Is Nothing Then
' Output agent messages to the console.
subscription.SynchronizationAgent.OutputVerboseLevel = 1
subscription.SynchronizationAgent.Output = ""
' Synchronously start the Merge Agent for the subscription.
subscription.SynchronizationAgent.Synchronize()
Else
Throw New ApplicationException("There is insufficent metadata to " + _
"synchronize the subscription. Recreate the subscription with " + _
"the agent job or supply the required agent properties at run time.")
End If
Else
' Do something here if the pull subscription does not exist.
Throw New ApplicationException(String.Format( _
"A subscription to '{0}' does not exist on {1}", _
publicationName, subscriberName))
End If
Catch ex As Exception
' Implement appropriate error handling here.
Throw New ApplicationException("The subscription could not be " + _
"synchronized. Verify that the subscription has " + _
"been defined correctly.", ex)
Finally
conn.Disconnect()
End Try
次の例では、Web 同期を使用してマージ パブリケーションのプル サブスクリプションを同期します。エージェントを同期的に起動し、追加のサブスクリプション情報が提供されるように、サブスクリプションは、エージェント ジョブや、関連するサブスクリプション メタデータを使わずに作成されます。
// Define the server, publication, and database names.
string subscriberName = subscriberInstance;
string publisherName = publisherInstance;
string distributorName = distributorInstance;
string publicationName = "AdvWorksSalesOrdersMerge";
string subscriptionDbName = "AdventureWorksReplica";
string publicationDbName = "AdventureWorks";
string hostname = @"adventure-works\garrett1";
string webSyncUrl = "https://" + publisherInstance + "/SalesOrders/replisapi.dll";
// Create a connection to the Subscriber.
ServerConnection conn = new ServerConnection(subscriberName);
MergePullSubscription subscription;
MergeSynchronizationAgent agent;
try
{
// Connect to the Subscriber.
conn.Connect();
// Define the pull subscription.
subscription = new MergePullSubscription();
subscription.ConnectionContext = conn;
subscription.DatabaseName = subscriptionDbName;
subscription.PublisherName = publisherName;
subscription.PublicationDBName = publicationDbName;
subscription.PublicationName = publicationName;
// If the pull subscription exists, then start the synchronization.
if (subscription.LoadProperties())
{
// Get the agent for the subscription.
agent = subscription.SynchronizationAgent;
// Check that we have enough metadata to start the agent.
if (agent.PublisherSecurityMode == null)
{
// Set the required properties that could not be returned
// from the MSsubscription_properties table.
agent.PublisherSecurityMode = SecurityMode.Integrated;
agent.DistributorSecurityMode = SecurityMode.Integrated;
agent.Distributor = publisherName;
agent.HostName = hostname;
// Set optional Web synchronization properties.
agent.UseWebSynchronization = true;
agent.InternetUrl = webSyncUrl;
agent.InternetSecurityMode = SecurityMode.Standard;
agent.InternetLogin = winLogin;
agent.InternetPassword = winPassword;
}
// Enable agent output to the console.
agent.OutputVerboseLevel = 1;
agent.Output = "";
// Synchronously start the Merge Agent for the subscription.
agent.Synchronize();
}
else
{
// Do something here if the pull subscription does not exist.
throw new ApplicationException(String.Format(
"A subscription to '{0}' does not exist on {1}",
publicationName, subscriberName));
}
}
catch (Exception ex)
{
// Implement appropriate error handling here.
throw new ApplicationException("The subscription could not be " +
"synchronized. Verify that the subscription has " +
"been defined correctly.", ex);
}
finally
{
conn.Disconnect();
}
' Define the server, publication, and database names.
Dim subscriberName As String = subscriberInstance
Dim publisherName As String = publisherInstance
Dim publicationName As String = "AdvWorksSalesOrdersMerge"
Dim subscriptionDbName As String = "AdventureWorksReplica"
Dim publicationDbName As String = "AdventureWorks"
Dim hostname As String = "adventure-works\garrett1"
Dim webSyncUrl As String = "https://" + publisherInstance + "/SalesOrders/replisapi.dll"
' Create a connection to the Subscriber.
Dim conn As ServerConnection = New ServerConnection(subscriberName)
Dim subscription As MergePullSubscription
Dim agent As MergeSynchronizationAgent
Try
' Connect to the Subscriber.
conn.Connect()
' Define the pull subscription.
subscription = New MergePullSubscription()
subscription.ConnectionContext = conn
subscription.DatabaseName = subscriptionDbName
subscription.PublisherName = publisherName
subscription.PublicationDBName = publicationDbName
subscription.PublicationName = publicationName
' If the pull subscription exists, then start the synchronization.
If subscription.LoadProperties() Then
' Get the agent for the subscription.
agent = subscription.SynchronizationAgent
' Check that we have enough metadata to start the agent.
If agent.PublisherSecurityMode = Nothing Then
' Set the required properties that could not be returned
' from the MSsubscription_properties table.
agent.PublisherSecurityMode = SecurityMode.Integrated
agent.Distributor = publisherInstance
agent.DistributorSecurityMode = SecurityMode.Integrated
agent.HostName = hostname
' Set optional Web synchronization properties.
agent.UseWebSynchronization = True
agent.InternetUrl = webSyncUrl
agent.InternetSecurityMode = SecurityMode.Standard
agent.InternetLogin = winLogin
agent.InternetPassword = winPassword
End If
' Enable agent logging to the console.
agent.OutputVerboseLevel = 1
agent.Output = ""
' Synchronously start the Merge Agent for the subscription.
agent.Synchronize()
Else
' Do something here if the pull subscription does not exist.
Throw New ApplicationException(String.Format( _
"A subscription to '{0}' does not exist on {1}", _
publicationName, subscriberName))
End If
Catch ex As Exception
' Implement appropriate error handling here.
Throw New ApplicationException("The subscription could not be " + _
"synchronized. Verify that the subscription has " + _
"been defined correctly.", ex)
Finally
conn.Disconnect()
End Try